I am currently tinkering with a poc, which is a rewrite of an existing product originally implemented in Python.
I recently saw a presentation on :gen_statem, and wanted to play around with it. I quickly realised that it might fit nicely my case.

The problem/case:

The existing product functions both as a SaaS product and a “firmware” for an IoT product. Given that I hope to utilise Nerves, for the IoT product, I suddenly see a case for adding additional states, that only is a concern for the Nerves variant of the product.

What I’m asking

Is it possible to develop a standalone software, that can run in a container, but also be imported and extended in the Nerves software?

Such that I can extend the “Sensor” gen_state_machine, adding additional states, and override a selection of callbacks already implemented in “Sensor” module?

Do I need a macro for this?
Is this bad practice?

Thanks!